CBSE Class 10 Answered

Plant cells respire, just as animal cells do. If they stop respiring, they will die.. Plants respire all the time, whether it is dark or light. They are always taking in oxygen and releasing carbon dioxide. But they also photosynthesise when they are in the light - and remember that plants take in carbon dioxide and release oxygen when they photosynthesise.Photosynthesis usually results in a net food gain, once respiration has been accounted for. This means that there is an increase in the biomass of the plant.